AM6 Prefabricated Substation Protection & Control Device

2 × 4–20 mA DC measurement channels and 3 temperature measurement channels

AM6-PWC integrates protection, control, measurement, communication and networking for prefabricated substations. Designed for photovoltaic, energy storage and wind power step-up substations, it supports rich I/O, IEC 60870-5-103/Modbus communication, event records and fault waveform recording.

Main Feature

• Independent operating circuit, adaptive to 0.25–5 A circuit-breaker tripping and closing current.

• 8 AC current channels and 7 AC voltage channels for HV-side and LV-side voltage/current acquisition.

• 43 active digital inputs and 10 independently configurable dry-contact outputs.

• 2 × 4–20 mA DC measurement channels and 3 temperature measurement channels.

• USB upgrade plus export of settings, event records and fault waveform records.

• 2 × 4–20 mA analog transmitter outputs, configurable through programmable logic software.

• Protocol conversion with 8 RS485 ports for inverter and auxiliary-device data acquisition.

• Fibre-optic ring network support, 3 Ethernet ports and 2 optical-module slots.

Technical Specification

Power supply	AC/DC 110 V or AC/DC 220 V; operating range ±20%; power consumption ≤20 VA
Voltage input	HV side AC 100 V line voltage or 100/√3 V phase voltage; LV side AC 800 V. Measuring range: HV 0.1–120 V, LV 0.1–1000 V. Accuracy: Class 1
Current input	AC 1 A or 5 A. Measuring range: 0.04 In–20 In. Accuracy: Class 0.5
Frequency	50/60 Hz rated; 40–70 Hz range; accuracy ±0.005 Hz
Digital input	AC/DC 110 V or 220 V; pickup threshold 70% Un; return threshold 55% Un
Digital output	mechanical life ≥10,000 operations; making capacity ≥1000 W; continuous current ≥5 A; short-time current ≥30 A/200 ms; breaking capacity ≥30 W

Dimension

Wiring

Application

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